[openib-general] [PATCH for-2.6.18] IB/cma: option to limitMTU to 1K

[Sean Hefty]

Michael S. Tsirkin wrote:
>>That's the default and not the minimum MTU (for IPoIB).
> 
> How isn't it? By default, IPoIB reports 2K MTU to linux.
> So it will get 2K packets, and since IB swiches
> can not fragment packets, they will simply get dropped.

I think this is simply the difference between the spec and the implementation. 
Given that the implementation requires a 2k MTU, IMO it should request paths 
with a 2k MTU.

- Sean